Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) HASHIMOTO Sozo,Sources of Laposky's Graphics,Journal of Graphic Science of Japan,03875512,JAPAN SOCIETY FOR GRAPHIC SCIENCE,2001,35,3,15-19,https://cir.nii.ac.jp/crid/1390001204635709568,https://doi.org/10.5989/jsgs.35.3_15